Science

Wednesday, 4 February 2026
13 facts about tears
13 facts about tears
Multipurpose liquid
Associated with emotions, tears are a product of lacrimal glands, found in the eyes of most terrestrial vertebrates. Although their primary function i ...

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Tears
Tears are distributed evenly by blinking.
NASA
The first NASA crewed Space Program was Project Mercury.
Although it is not well-remembered, it was the foundation for all space missions.
Fungi
Fungal reproduction is complex, reflecting differences in lifestyle and genetic makeup.
It is estimated that one-third of all fungi reproduce using more than one propagation method. Most o ...
Moon
The surface of the Moon is littered with impact craters because it does not have an atmosphere thick enough to destroy pieces of rock heading towards it.
The largest crater on its surface is the South Pole-Aitken Basin, it is 2500 km in diameter and 13 km deep.
Liver
It is present in all vertebrates.
Mushrooms
Mushrooms are some of the oldest inhabitants of the Earth.
Latest evidence suggests that the first mushrooms evolved on Earth between 715 and 810 million years ago.
Amber
It has been used in jewelry since 13,000 BC.
Moon
The density of the Moon is on average 3346,4 kg/m3.
It is therefore the second densest moon in the Solar System, second only to the moon Io.
Cosmos
The next stage was the Dark Ages and the formation of large cosmic structures.
This period lasted from 370 thousand to 1 billion years after the Big Bang. During this time, matter ...
Anorexia Nervosa
There are two main types of anorexia.
The restrictive type, in which starvation predominates Gluttonous-excessive type, in which the patient overeats uncontrollably, induces vomiting, uses laxatives